Improved coal-sifter



B. SEARS.

Coal Sif ter.

No. 100,331. Patented lMarch 1, 1870.

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N. PETERS. Phmuvnmognpner. wminman, D. c.

tuitt ,States BROWN SEARS, OF OOLD SPRING, NEW YORK.

Letters Patent No. 100,331, dated ,March 1, 1870.

IMYROVED COAL-SIITER.

The Schedule retexred to in these Lettera Patent and making part of thesame.

To all whom t't may concern 'Be it known that 1, BROWN SEARS, of ColdSpring, in the county of Putnam, and State of New York, have invented anew and improved Coal-Sifter; and 1 do hereby declare that the followingis a full, clear, and exact description of the construction andoperation of the same, reference being had to the annexed drawingsmaking a part of this specification.

Figure 1 is a front view.

Figure 2 is a vertical section through the cetter Figure 3ds ahorizontalsection on the line 1 and 2.

Figure 4 is a view of the movable riddle-box.

Similar letters of reference indicate corresponding parts.

My invention has for its object to furnish a simple, convenient, andeffective machine for sittin g, without the annoyance of dust; and

1t consists in the construction and combination of the various parts ofthe machine, as hereinafter more fully described.

A is a close box, with a hinged cover, B.

O is a drawer for receiving the dust.

D is a movable box, containing the wire sieve J.-

M is apartition in box D, having two openings K K and one opening markedL.

E is a lever for giving motion to the movable riddlebox 1).

F is a rod connecting lever E to box D.

G is a spout for the discharge of material that does not pass throughthe meshes of the sieve.

H are four rollers connected to the bottom of movable 'box D, orsubstituted by half-round slides.

I I are two guides or tracks for rollers 0r slides H to run on.

The mode of operating the 'machine is as follows:

The cover Bis raised, the material is thrown in the movablev box D, andthcu the cover is closed. lhe handle E is moved back and forward in arapid inanner until all the material that has not passed through themeshes has passed through the openings K K and L, into and through theIspout G, into any receptacle that is placed under the spout.` l1`he dustand small particles that pass through the meshes fall into the drawer C.The drawer is pulled out and emptied, then replaced for the nextoperation. No dust or small particles can escape, the box A heiligcompletely closed.

The partition Min the movable box D prevents the dust or small particlesfrom passing out of the spout G, for all the material that reaches thespout (l must pass through the openings KK and over the intel'- veningmeshes before it reaches the partition, and then is compelled to movealong until it passes through the opening L into the spout G. 1n themean time the dust and small particles fall through the meshes into thebox O.

Having t-hus described my invention,

What I claim as new and original, and desire to secure by LettersPatent, is

The construction of the movable box D` with its partition M and openingsK K, rollers H H and guides I 1', in combination with the closed box Aand drawer O, as shown and described.

The above specification of my invention signed by me this 29th dav of November. 1869.

BROWN SEARS.

Witnesses:

C. H. Feuers, JOHN MYERS.

the opposite side ot'

